Suitable for corporate giveaways, the Powerstick portable charger from Ecosol can be charged on all USB ports, including those on laptop computers.

The units, which can be branded with a logo, are easy to carry—they are the size of a stick of gum and weigh less than 1.5 ounces, the manufacturer says.

The unit comes with nine connectors to charge most popular cell phones, PDAs, MP3 players and GPS devices.